<?php
function change_to_threeword($city_name_var)
{
	$xml=simplexml_load_file(dirname(__FILE__)."/city.xml");
	$city_name=$city_name_var;  //取参数
	$three_word=array();  //机场的三字码，即最后的答案
	$i=0;
	foreach($xml->state as $state)
	{
		foreach($state->attributes() as $city)
		{
			if($city_name==$city)
			{
			   foreach($state->children() as $a)
		       {
			       foreach($a->attributes() as $b)
			       {
				       $three_word[$i]=$b;
				       $i++;
			       }
		       }
			}
		}
		
	}
	
	
        if($i==0) {
            $arr['returnCode']='error';
			echo json_encode($arr);exit;
        }
		
	return $three_word[0];
}


function change_to_chinese($threeword)
{
	$xml=simplexml_load_file(dirname(__FILE__)."/city.xml");
	$city_threeword=$threeword; //取参数
	$airport=array();//最后的答案，即跟据三字码返回的机场名字和其所在的城市，结果为数组
	foreach($xml->state as $answer)
	{
		foreach($answer->children() as $a) //先遍历子节点
		{
			foreach($a->attributes() as $b)//再遍历子节点的属性
			{
				if($threeword==$b)
				{
				   foreach($answer->attributes() as $c)
				   {
					   $airport["city"]=$c;
				   }
				   $airport["name"]=$a;
				   return $airport['name'];
				}
			}
		}
	}
	return "no";
}



function xml2array($contents, $get_attributes=1, $priority = 'tag') { 
    if(!$contents) return array(); 

    if(!function_exists('xml_parser_create')) { 
        //print "'xml_parser_create()' function not found!"; 
        return array(); 
    } 

    //Get the XML parser of PHP - PHP must have this module for the parser to work 
    $parser = xml_parser_create(''); 
    xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "UTF-8"); # http://minutillo.com/steve/weblog/2004/6/17/php-xml-and-character-encodings-a-tale-of-sadness-rage-and-data-loss 
    xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0); 
    xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1); 
    xml_parse_into_struct($parser, trim($contents), $xml_values); 
    xml_parser_free($parser); 

    if(!$xml_values) return;//Hmm... 

    //Initializations 
    $xml_array = array(); 
    $parents = array(); 
    $opened_tags = array(); 
    $arr = array(); 

    $current = &$xml_array; //Refference 

    //Go through the tags. 
    $repeated_tag_index = array();//Multiple tags with same name will be turned into an array 
    foreach($xml_values as $data) { 
        unset($attributes,$value);//Remove existing values, or there will be trouble 

        //This command will extract these variables into the foreach scope 
        // tag(string), type(string), level(int), attributes(array). 
        extract($data);//We could use the array by itself, but this cooler. 

        $result = array(); 
        $attributes_data = array(); 
         
        if(isset($value)) { 
            if($priority == 'tag') $result = $value; 
            else $result['value'] = $value; //Put the value in a assoc array if we are in the 'Attribute' mode 
        } 

        //Set the attributes too. 
        if(isset($attributes) and $get_attributes) { 
            foreach($attributes as $attr => $val) { 
                if($priority == 'tag') $attributes_data[$attr] = $val; 
                else $result['attr'][$attr] = $val; //Set all the attributes in a array called 'attr' 
            } 
        } 

        //See tag status and do the needed. 
        if($type == "open") {//The starting of the tag '<tag>' 
            $parent[$level-1] = &$current; 
            if(!is_array($current) or (!in_array($tag, array_keys($current)))) { //Insert New tag 
                $current[$tag] = $result; 
                if($attributes_data) $current[$tag. '_attr'] = $attributes_data; 
                $repeated_tag_index[$tag.'_'.$level] = 1; 

                $current = &$current[$tag]; 

            } else { //There was another element with the same tag name 

                if(isset($current[$tag][0])) {//If there is a 0th element it is already an array 
                    $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result; 
                    $repeated_tag_index[$tag.'_'.$level]++; 
                } else {//This section will make the value an array if multiple tags with the same name appear together
                    $current[$tag] = array($current[$tag],$result);//This will combine the existing item and the new item together to make an array
                    $repeated_tag_index[$tag.'_'.$level] = 2; 
                     
                    if(isset($current[$tag.'_attr'])) { //The attribute of the last(0th) tag must be moved as well 
                        $current[$tag]['0_attr'] = $current[$tag.'_attr']; 
                        unset($current[$tag.'_attr']); 
                    } 

                } 
                $last_item_index = $repeated_tag_index[$tag.'_'.$level]-1; 
                $current = &$current[$tag][$last_item_index]; 
            } 

        } elseif($type == "complete") { //Tags that ends in 1 line '<tag />' 
            //See if the key is already taken. 
            if(!isset($current[$tag])) { //New Key 
                $current[$tag] = $result; 
                $repeated_tag_index[$tag.'_'.$level] = 1; 
                if($priority == 'tag' and $attributes_data) $current[$tag. '_attr'] = $attributes_data; 

            } else { //If taken, put all things inside a list(array) 
                if(isset($current[$tag][0]) and is_array($current[$tag])) {//If it is already an array... 

                    // ...push the new element into that array. 
                    $current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result; 
                     
                    if($priority == 'tag' and $get_attributes and $attributes_data) { 
                        $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data; 
                    } 
                    $repeated_tag_index[$tag.'_'.$level]++; 

                } else { //If it is not an array... 
                    $current[$tag] = array($current[$tag],$result); //...Make it an array using using the existing value and the new value
                    $repeated_tag_index[$tag.'_'.$level] = 1; 
                    if($priority == 'tag' and $get_attributes) { 
                        if(isset($current[$tag.'_attr'])) { //The attribute of the last(0th) tag must be moved as well
                             
                            $current[$tag]['0_attr'] = $current[$tag.'_attr']; 
                            unset($current[$tag.'_attr']); 
                        } 
                         
                        if($attributes_data) { 
                            $current[$tag][$repeated_tag_index[$tag.'_'.$level] . '_attr'] = $attributes_data; 
                        } 
                    } 
                    $repeated_tag_index[$tag.'_'.$level]++; //0 and 1 index is already taken 
                } 
            } 

        } elseif($type == 'close') { //End of tag '</tag>' 
            $current = &$parent[$level-1]; 
        } 
    } 
     
    return($xml_array); 
}  

function flightNo2flight($no=''){
    if(!$no)return ;
    $arr = array(
        'ca'=>'中国国航', 
        'mu' =>'东方航空',
        'cz' =>'南方航空',
        'hu' =>'海南航空' ,
        'sc' =>'山东航空',
        'fm' =>'上海航空' ,
        'zh' =>'深圳航空' ,
        '3u' =>'四川航空' ,
        'mf' =>'厦门航空 ',
        'bk' =>'奥凯航空' ,
        '9c' =>'春秋航空',
        'eu' =>'成都航空', 
        'kn' =>'中国联航',
        '8c' =>'东星航空', 
        'g5' =>'华夏航空',
        '8l' =>'祥鹏航空',
        'ho' =>'吉祥航空',  
        'jd' =>'金鹿航空有', 
        'gs' =>'大新华快运航空有限公司',
        'cn' =>'大新华航空', 
        'pn' =>'西部航空', 
        'ij' =>'长城航空',
        'f4' =>'上海国际货运航空有限公司', 
        'ji' =>'翡翠国际货运航空有限责任公司', 
        'j5' =>'东海航空', 
        'jd' =>'首都航空', 
        'ns' =>'东北航空', 
        'oq' =>'重庆航空', 
        'po' =>'中国邮政航空有限公司', 
        'pn' =>'西部航空', 
        'hc' =>'中国海洋直升机公司', 
        'hy' =>'中国航空货运公司', 
        'vd' =>'鲲鹏航空司', 
        'y8' =>'扬子江快运航空有限公司', 
        'nx' =>'澳门航空',
        'zg' =>'非凡航空', 
        'cx' =>'国泰航空',
        'ka' =>'港龙航空', 
        'hx' =>'香港航空公司', 
        'o8' =>'甘泉香港', 
        'uo' =>'香港快运航空', 
        'ld' =>'香港华民航空', 
        'ci' =>'中华航空',
        'br' =>'长荣航空股份有限公司', 
        'ge' =>'复兴航空运输股份有限公司', 
        'ef' =>'远东航空股份有限公司', 
        'ae' =>'华信航空股份有限公司', 
        'b7' =>'立荣航空公司航空公司',
        'tv' =>'西藏航空',
    );
    $key= strtolower(substr($no, 0,2));
    if(isset($arr[$key]))    return $arr[$key];
    return NULL;
    
    
    
}

?>